Efficient unidirectional nanoslit couplers for surface plasmons

Fernando López-Tejeira, Sergio G. Rodrigo, Luis Martín-Moreno, Francisco J. García-Vidal, Eloïse Devaux, Thomas W. Ebbesen, Joachim R. Krenn, Ilya Radko, Sergey I. Bozhevolnyi, María U. González, Jean-Claude Weeber, Alain Dereux

Publikation: Bidrag til tidsskriftLetterForskningpeer review

Resumé

The emerging field of plasmonics is based on exploiting the coupling between light and collective electronic excitations within conducting materials known as surface plasmons. Because the so-called surface plasmon polariton (SPP) modes that arise from this coupling are not constrained by the optical diffraction limit, it is hoped that they could enable the construction of ultracompact optical components1,2. But in order that such potential can be realized, it is vital that the relatively poor light–SPP coupling be improved. This is made worse by the fact that the incident light that is conventionally used to launch SPPs in a metal film 3,4,5,6 is a significant source of noise, unless directed away from a region of interest, which then decreases the signal and increases the system’s size. Back-side illumination of subwavelength apertures in optically thick metal films7,8,9,10,11,12,13 eliminates this problem but does not ensure a unique propagation direction for the SPP. We propose a novel back-side slit-illumination method that incorporates a periodic array of grooves carved into the front side of a thick metal film. Bragg reflection enhances the propagation of SPPs away from the array, enabling them to be unidirectionally launched from, and focused to, a localized point.
OriginalsprogEngelsk
TidsskriftNature Physics
Vol/bind3
Sider (fra-til)324-328
ISSN1745-2473
DOI
StatusUdgivet - 2007

Fingeraftryk

plasmons
couplers
metal films
polaritons
illumination
propagation
grooves
slits
emerging
apertures
conduction
electronics
diffraction
metals
excitation

Citer dette

López-Tejeira, F., Rodrigo, S. G., Martín-Moreno, L., García-Vidal, F. J., Devaux, E., Ebbesen, T. W., ... Dereux, A. (2007). Efficient unidirectional nanoslit couplers for surface plasmons. Nature Physics, 3, 324-328. https://doi.org/10.1038/nphys584
López-Tejeira, Fernando ; Rodrigo, Sergio G. ; Martín-Moreno, Luis ; García-Vidal, Francisco J. ; Devaux, Eloïse ; Ebbesen, Thomas W. ; Krenn, Joachim R. ; Radko, Ilya ; Bozhevolnyi, Sergey I. ; González, María U. ; Weeber, Jean-Claude ; Dereux, Alain. / Efficient unidirectional nanoslit couplers for surface plasmons. I: Nature Physics. 2007 ; Bind 3. s. 324-328.
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abstract = "The emerging field of plasmonics is based on exploiting the coupling between light and collective electronic excitations within conducting materials known as surface plasmons. Because the so-called surface plasmon polariton (SPP) modes that arise from this coupling are not constrained by the optical diffraction limit, it is hoped that they could enable the construction of ultracompact optical components1,2. But in order that such potential can be realized, it is vital that the relatively poor light–SPP coupling be improved. This is made worse by the fact that the incident light that is conventionally used to launch SPPs in a metal film 3,4,5,6 is a significant source of noise, unless directed away from a region of interest, which then decreases the signal and increases the system’s size. Back-side illumination of subwavelength apertures in optically thick metal films7,8,9,10,11,12,13 eliminates this problem but does not ensure a unique propagation direction for the SPP. We propose a novel back-side slit-illumination method that incorporates a periodic array of grooves carved into the front side of a thick metal film. Bragg reflection enhances the propagation of SPPs away from the array, enabling them to be unidirectionally launched from, and focused to, a localized point.",
author = "Fernando L{\'o}pez-Tejeira and Rodrigo, {Sergio G.} and Luis Mart{\'i}n-Moreno and Garc{\'i}a-Vidal, {Francisco J.} and Elo{\"i}se Devaux and Ebbesen, {Thomas W.} and Krenn, {Joachim R.} and Ilya Radko and Bozhevolnyi, {Sergey I.} and Gonz{\'a}lez, {Mar{\'i}a U.} and Jean-Claude Weeber and Alain Dereux",
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López-Tejeira, F, Rodrigo, SG, Martín-Moreno, L, García-Vidal, FJ, Devaux, E, Ebbesen, TW, Krenn, JR, Radko, I, Bozhevolnyi, SI, González, MU, Weeber, J-C & Dereux, A 2007, 'Efficient unidirectional nanoslit couplers for surface plasmons', Nature Physics, bind 3, s. 324-328. https://doi.org/10.1038/nphys584

Efficient unidirectional nanoslit couplers for surface plasmons. / López-Tejeira, Fernando; Rodrigo, Sergio G.; Martín-Moreno, Luis; García-Vidal, Francisco J.; Devaux, Eloïse; Ebbesen, Thomas W.; Krenn, Joachim R.; Radko, Ilya; Bozhevolnyi, Sergey I.; González, María U.; Weeber, Jean-Claude; Dereux, Alain.

I: Nature Physics, Bind 3, 2007, s. 324-328.

Publikation: Bidrag til tidsskriftLetterForskningpeer review

TY - JOUR

T1 - Efficient unidirectional nanoslit couplers for surface plasmons

AU - López-Tejeira, Fernando

AU - Rodrigo, Sergio G.

AU - Martín-Moreno, Luis

AU - García-Vidal, Francisco J.

AU - Devaux, Eloïse

AU - Ebbesen, Thomas W.

AU - Krenn, Joachim R.

AU - Radko, Ilya

AU - Bozhevolnyi, Sergey I.

AU - González, María U.

AU - Weeber, Jean-Claude

AU - Dereux, Alain

PY - 2007

Y1 - 2007

N2 - The emerging field of plasmonics is based on exploiting the coupling between light and collective electronic excitations within conducting materials known as surface plasmons. Because the so-called surface plasmon polariton (SPP) modes that arise from this coupling are not constrained by the optical diffraction limit, it is hoped that they could enable the construction of ultracompact optical components1,2. But in order that such potential can be realized, it is vital that the relatively poor light–SPP coupling be improved. This is made worse by the fact that the incident light that is conventionally used to launch SPPs in a metal film 3,4,5,6 is a significant source of noise, unless directed away from a region of interest, which then decreases the signal and increases the system’s size. Back-side illumination of subwavelength apertures in optically thick metal films7,8,9,10,11,12,13 eliminates this problem but does not ensure a unique propagation direction for the SPP. We propose a novel back-side slit-illumination method that incorporates a periodic array of grooves carved into the front side of a thick metal film. Bragg reflection enhances the propagation of SPPs away from the array, enabling them to be unidirectionally launched from, and focused to, a localized point.

AB - The emerging field of plasmonics is based on exploiting the coupling between light and collective electronic excitations within conducting materials known as surface plasmons. Because the so-called surface plasmon polariton (SPP) modes that arise from this coupling are not constrained by the optical diffraction limit, it is hoped that they could enable the construction of ultracompact optical components1,2. But in order that such potential can be realized, it is vital that the relatively poor light–SPP coupling be improved. This is made worse by the fact that the incident light that is conventionally used to launch SPPs in a metal film 3,4,5,6 is a significant source of noise, unless directed away from a region of interest, which then decreases the signal and increases the system’s size. Back-side illumination of subwavelength apertures in optically thick metal films7,8,9,10,11,12,13 eliminates this problem but does not ensure a unique propagation direction for the SPP. We propose a novel back-side slit-illumination method that incorporates a periodic array of grooves carved into the front side of a thick metal film. Bragg reflection enhances the propagation of SPPs away from the array, enabling them to be unidirectionally launched from, and focused to, a localized point.

U2 - 10.1038/nphys584

DO - 10.1038/nphys584

M3 - Letter

VL - 3

SP - 324

EP - 328

JO - Nature Physics

JF - Nature Physics

SN - 1745-2473

ER -

López-Tejeira F, Rodrigo SG, Martín-Moreno L, García-Vidal FJ, Devaux E, Ebbesen TW et al. Efficient unidirectional nanoslit couplers for surface plasmons. Nature Physics. 2007;3:324-328. https://doi.org/10.1038/nphys584